Is CVE-2024-54478 in the CISA KEV catalog?

No. CVE-2024-54478 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-54478?

CVE-2024-54478 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2024-54478?

CVE-2024-54478 has an EPSS score of 0.58% (43th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-54478?

Upgrade ipados to 18.2 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2024-54478

MEDIUM

6.5

CVSS v3

NVD

Description

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 18.2 and iPadOS 18.2, iPadOS 17.7.4, macOS Sequoia 15.2, macOS Sonoma 14.7.2, tvOS 18.2, visionOS 2.2, watchOS 11.2. Processing maliciously crafted web content may lead to an unexpected process crash.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

ipadosNVD

Affected:>= 18.0, < 18.2Fixed in:18.2CVE-2024-54478derived from NVD

iphone osNVD

Affected:< 18.2Fixed in:18.2CVE-2024-54478derived from NVD

macosNVD

Affected:>= 15.0, < 15.2Fixed in:15.2CVE-2024-54478derived from NVD

tvosNVD

Affected:< 18.2Fixed in:18.2CVE-2024-54478derived from NVD

visionosNVD

Affected:< 2.2Fixed in:2.2CVE-2024-54478derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploit Intelligence

0.58%probability of exploitation in 30 days

43rdpercentile

Moderate risk: more likely to be exploited than 43% of all known CVEs.

References

Vendor Advisory7

Other references1

seclists.org

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-02.